. Design of a university armory . Total length (7 -8) + (l0»-4) equ. 18«-0 Use 8 x 3/8 web. Area 8 x 3/8 equ. sq. in. Try 2 - 6* x 3^ x 9/16 angles Wiper fU 556 Area 2 x equ. sq. in*Lower plate 14 x 7/16 ? Total I (angles) equ. x ^ equ. I ( plate) equ. r equ. I Allowable stress iq x 16000 ~ 70 —gTTg— e^u. 10,500# Required area. 300^00 Qqu. 19%0 sq# iru 10,500Eff. equ. 10l£ Member Y Stress - 131,000jFLength 13»-6 Use same section as Y - 13 1 web plate 8 x 3/8 2 angles, 6 x 3i x 9/161 lower plate 14 x 7/16 Members Y - 17 and Y - 19.
. Design of a university armory . Total length (7 -8) + (l0»-4) equ. 18«-0 Use 8 x 3/8 web. Area 8 x 3/8 equ. sq. in. Try 2 - 6* x 3^ x 9/16 angles Wiper fU 556 Area 2 x equ. sq. in*Lower plate 14 x 7/16 ? Total I (angles) equ. x ^ equ. I ( plate) equ. r equ. I Allowable stress iq x 16000 ~ 70 —gTTg— e^u. 10,500# Required area. 300^00 Qqu. 19%0 sq# iru 10,500Eff. equ. 10l£ Member Y Stress - 131,000jFLength 13»-6 Use same section as Y - 13 1 web plate 8 x 3/8 2 angles, 6 x 3i x 9/161 lower plate 14 x 7/16 Members Y - 17 and Y - 19. Max. stress - 134,000# Total length t8»~8)+(6f-4) equ. 15»-0»Use 6 x 3/8 web area plate 12Mx3/8 Two angles 5x3x3/8 Total I(angles) equ. equ. (pfcate) equ. 1 Total 8977 ll|™7 equ. Allowable stress. 16000 - 70x equ. # Required Area v?*222 ea*u* 8<1»11*280 ln% Member Y - 31 Stress - 68,000# Carry same section through Y - 21 asused in Y - 19. Members Y - 23 and Y - 25 6x|
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1910
